Curtain stretching and drying frame.



No. 895,744; PATENTED AUG. 11, 1908.-

* H. GOLDBERGER.

CURTAIN S/TRETCHING AND DRYING FRAME.

' APPLICATION FILED MAR. 31, 1908.

2 SHEETB-SHEET 1.

v Inventor. He'nn Goldbez'qer'. MM 7 his Attorneys No.895,744. PATENTED AUG. 11, 1908. I H. GOLDBERGER:

CURTAIN STRETOHING AND DRYING FRAME.

APPLICATION FILED MAR. 31, 190B.

-' ly- 38 57 r 2 SHEETS-SHEET 2.

witnesses. I

w H gfiigenfor. dPw/m/ I y' a i Afifom s of Illinois, have PATENT orrrcn.

HENRY GOLDBERGER, OF CHICAGO, ILLINOIS.

CURTAIN STRETCHIN G AND DRYING FRAME.

To all whom it may concern:

Be it known that I, HENRY GOLDBERGER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State invented certain new and useful Improvements in Curtain Stretching and Drying Frames; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the c accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

his invention relates to improvements in curtain stretcher frames on which curtains or like textile articles are stretched while drying, and the invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

Among the objects of my invention is to provide .an improvement in stretcher frames whereby the pins on which the curtain or like article is stretched and by which it is fastened on the frame may be concealed when not in use and thus avoid danger of injury to the person handling the frame.

A further object of my invention is to so mount the curtain engaging pins as to permit them to be disengaged from the curtain to cast the curtain off of the frame by rotation of the parts which carry said pins.

A still further object of the invention is to provide an improved connection between the side and end members of the frame at the corners thereof arranged to permit the frame to be adjusted to varying dimensions and to hold the members at fixed angles to maintain its rectangular shape.

s shown in the drawings 1-F igure 1 is a perspective view of a stretcher or drying frame embodying my invention. Fig. 2 is an elevation of one corner of the frame showing the devices for fastening together the frame members and maintaining them at fixed angles. Fig. 3 is a fragmentary section, taken on line 33 ofFig. 2. Fig. 4 is a detail illustrating the manner of mounting the pin bearing rollers and for locking the same in place, Fig. 5 is a detail section, taken on line 5-5 of Fig. 2. Fig. 6 is a cross-section taken through one of the frame members and its associated pin bearing roller, showing the roller in position to conceal the pins. Fig. 7 is a similar section showing the roller in position to present the pins for engagement with the margins of a curtain or a like device. Fig. 8 is a perspective view of the upper end Specification of Latters Patent. Application filed March 31, 1908.

1 frame member.

Patented Aug. 11, 1908. Serial No. 424,382.

of one of the supporting braces of the frame. Fig. 9 is a perspective view of the upper end of one of the end members of the frame, showing the manner of connecting the brace thereto. Fig. 10 illustrates a convenient form of curtain attaching pin.

As shown in the drawings, l0, l0 designate the sides members, and 11, 11 the end members of the frame. Said members cross each other at the corners of the frame and are clamped together by clamping bolts 12 which extend through longitudinal slots 13, 13 in the overlapping parts of said members. Said clamping bolts are each provided at one end with a head 14 and at its other or screw-threaded end with a thumb nut 15. Preferably the screw-threaded ends of the clamping bolts are upset, after the nuts are turned thereon, to form heads 16 to prevent accidental detachment of the nuts therefrom. The slot 13 of one of the mem bers at each corner of the frame is provided with an enlargement 17 through which the head of the bolt may pass, whereby said members may be assembled and detached without the necessity of removing the nuts of the clamping bolts. Said clamping bolts are shown as associated with devices at the corners of the frame for maintaining the frame members at fixed angles to each other and preventing said members from becoming twisted or distorted about the clamping bolts as pivots. The construction at each corner of the frame comprises two substantially U-shaped devices, each comprising a central plate 20 and parallel arms or pins 22 at the ends of the plate. The plates 20 cross each other at right angles and are apertured at their points of intersection for the passage of the clamping bolts 12. The plates 20 of each two pair of devices are provided on their engaging faces, one with a V-shaped projection or tooth 23 and the other with a recess to receive said tooth to prevent the plates from rotating or angularly shifting relatively to each other when pressed together between the thumb nuts of the clamping bolts 12 and the adjacent The arms 22 enter the slots 13 of the frame members, and by reason of the fixed angular relation of the plates 20 when clamped together and against the frame in the manner described, serve to prevent relative angular shifting or displacement of the crossing frame members and to hold the frame rigidly rectangular. The

' stretched on the frame.

rangement permits engagement of the clamping bolts- 12 with the intersecting slots 13 enables the frame members to be adjusted one on the other to vary the dimensions of the frame when the clamping nuts 15 arereleased. The interlocking engagement of the plates 20 afforded by the projections 23 and the interfitting notches holds said plates rigidly fixed'when pressed together by the nuts 15, as stated; but when said nuts are loosened the plates of each air are free to turn one relatively to the ot er, the teeth or projections 23 at this time riding out of the notches on to the ad jacent flat faces of said plates. This ara slight twisting of the frame members relatively to each other when the frame is being adjusted to vary its dimensions so that the corners may be adjusted one at a time by a single person. The arms 22 of the inner plate of each pair extend entirely through the slots of the frame members 1.0 and are provided at their inner ends with transverse pins 21 which prevent the detachment of said arms 22 from the frame members 10.

Each frame member is equipped with a row of pins 24 which engage the margins of a curtain or like article to hold the same In accordance with my invention, said pins are carried by rotative pin bearing rollers 25 and 26 mounted on the side and end frame members, respectively, said rollers being so arranged as to hold the pins in position to properly engage the margins of the curtain, and to be rotated so as to release or cast off the curtains therefrom, or to shift the pins in a position to conceal the same between the frame members and said rollers. The said pin bearing rollers are shown as mounted in longitudinal recesses 28 formed on the inner margins of the side and end members of the frame, and the rollers are themselves provided with longitudinal recesses 30 in which the pins 24 are mounted. The said pins are fixed in one wall of the recess of each roller and extend at their free ends towards the other wall and are contained wholly within the recesses or within the circumference of the cylindric pin bearing rollers. The axes of rotation of the in bearing rollers are so disposed with respect to the inner margins of the side and end members of the frame and the longitudinal recesses 28 thereof, that when said rollers are rotated to turn the pins inwardly said pins are located inside the inner margins of the frame members in position for en gagement with the curtain or other article to be stretched on the frame, as shown in Fig. 7. When the recessed portion of the pin bearing rollers are turned outwardly toward the recesses 28 of the frame members, as shown in Fig. 6, the pins are concealed between the frame members and the pin bearing rollers. It will also be obvious that if the pin bearing rollers be turned inwardly from the positions shown in Figs. 3 and 7, the curtain or other article will be automatically disengaged or cast 0'3 from the pins, thus facilitating the detachment of the curtain from the frame.

The devices for mounting the rotative pin bearing rollers on the frame members are made as follows: Said rollers are provided at their ends with ferrules 35 to which are at- ,tached studs 36 which extend outwardly therefrom and have bearing in notched plates 37 which are fitted to the outer ends of the frame members and are attached thereto by screws 38. The said bearing studs 36 extend through, and are fixed to, the end walls of the ferrules, as herein shown, and constitute means for turning the pin bearing rollers. The studs are provided with flattened heads by which they are manipulated. The said pin rollers are supported intermediate their ends between the curved walls of the re cesses 28 of the frame members and longitudinally separated, hook-shaped bearing arms 39 which are attached to the rear faces of the frame members and extend inwardly therefrom and around said rollers in the manner clearly shown in Figs. 3, 6 and 7. The curved bearing arms 39 extend around the pin bearing rollers entirely to the inner margins of the frame members, thus avoiding projecting parts thereon liable to become engaged with the curtain or other article stretched on the frame. The said curved bearing arms 39 and the notched plates 37 constitute the supporting bearings for the rotative pin bearing rollers, and said arms 39 are spaced sufficiently close together to prevent the rollers from springing away from the frame members, should they ,be made of a material liable to warp. The plates 37 and studs 36 also constitute in part means for locking the rollers in any position of angular adjustment desired. For this purpose the studs 36 are screw-threaded exterior to the plates 37 and are provided with thumb nuts 40 which, when turned down against the plates 37, force the ends of the ferrules against the inner sides of the plates 37 in a manner to frictionally lock said rollers from rotation.

It may be desirable in some instances, as when the frame is made of considerable length, to make the side frame members of two parts or sections, joined centrally of the frame by hinges 41 to permit one end of the 1 ing across the hinge joints. As herein shown,

said bridge plates are fastened to the frame members by clamping bolts 43, 44, the former of which extends through longitudimember 24 occu ies a like osition with re- P P nal slots 45 of said plate, and the latter of which engage notches 46 formed in the ends of the plates. Said construction constitutes a rigid connection between the hinged sections of the side members and permits said frame members to be readily limbered so as to be folded without removing the bridge plates from the frame bars. When the side members are to be limbered, it is only necessary to loosen the clamping nuts of the bolts 43, 44 and shift the bridge plate 42 endwise to bring the notched ends thereof past the hinge oints of the members. When the side members are thus made up of two hinged sections, the pin bearing rollers associated therewith are likewise made of two sections which meet at the hinge joint of said side members. Each section of each. divided roller is provided at its outer end with a bearing and locking stud 36. The pin bearing rollers 26 associated with the continuous or one piece end members are provided with bearing and locking studs at one end only, at

their upper ends, as herein shown.

The pins 24 are shown as consisting each of two members 24 and 24 disposed at substantially right angles to each other. The members 24 of each pin is driven into one wall of the recess of the roller at an oblique angle to the plane of said wall, while the spect to the other wall of the recess. This arrangement of the pins enables the anchoring ends or members 24 thereof to be driven into and towards the central parts of the rollers in a manner to provide a firm connection of the pins with the rollers and to avoid splitting of the rollers when the pins are driven thereinto. The said pins may be driven into the rollers when straight and thereafter bent inwardly to the form shown in Figs. 6, 7 and 10.

As herein shown, the frame is provided with braces 50 by which it may be supported in an inclined position, as shown in Fig. 1.

aid braces are pivoted to the upper ends of the end members by means of pivot pins or studs 51 extending laterally from said end members and engaging bearing apertures 52 in the upper ends of said braces. In order to limit the rearward swing, the end members are shown as provided on their lateral faces with plates 53 having arcuate slots 54 which are engaged by headed guide pins orbolts 55 fixed to and extending inwardly from the said braces below their pivots. The slotted portions of said plates extend rearwardly from the end members, and the headed guide pins or bolts 55 are inserted through said slots from the inner sides of the plates and through suitably located openings in the braces and are fixed to the braces by nuts 56. Said guide pins or bolts thus constitute means for holding the braces in place and the pivot studs 57 may be made plain at their ends to 1 permit the braces to be fitted laterally thereto.

I claim as my invention 1. In a stretching or drying frame, the combination with a frame member, of a retative pin bearing roller parallel therewith and mounted on said frame member and pro vided with a row of attaching pins arranged to be concealed between the roller and said frame member by rotation of said roller.

2. In a stretching or drying frame, the combination with a frame member provided with a longitudinal recess, and a rotative pin bearing roller mounted on said frame member and carrying a row of attaching pins and arranged by rotation thereof to carry said pins between said roller and the recessed portion of said frame member.

3. In a stretching or drying frame, the combination with a frame member provided at its margin with a longitudinal recess, of a rotative pin bearing roller mounted in the recessed portion of said frame and provided with a longitudinal recess, and a row of attaching pins fixed to the roller and contained wholly within the recess of the roller.

4. In a stretching or drying frame, the combination with a frame member, of a rotative pin bearing roller carried thereby having a row of directly attached rigid pins, bearing arms fixed to the frame member and extending around and supporting said roller at longitudinally separated points in the length thereof, and means at the ends of the roller for locking the same from rotation.

5. In a stretching or drying frame, the combination with a frame member, of a rotative pin bearing roller carried by the frame member, bearing arms fixed to the frame member for supporting said roller intermediate its ends, and means at the end of the roller for locking the same from rotation comprising a screw-threaded stud extending endwise from the roller, a nut having screw-threaded engagement with said stud, and a plate on the frame member between said roller and nut through which said stud extends, said nut being arranged to frictionally clamp the plate between the nut and roller.

6. A drying frame comprising side and end frame members connected with each other at the corners of the frame, and pin bearing rollers carried by said frame members and rotatively mounted at the inner margins of said frame members, and pins carried by said rollers and arranged to be swung into position by rotation of the rollers to receive a curtain or the like, to be shifted to cast the curtain or the like off the frame or to be concealed between the rollers and the frame.

7. A drying or stretching frame comprising side and end frame members adjustably connected at the corners of the frame to vary the dimensions thereof, pin bearing rollers rotatively mounted on the frame members at the inner margins thereof and provided with longitudinal recesses, attaching pins fixed to said rollers within said recesses, and clamping means at the ends of said rollers for holding said rollers from rotation.

8. A drying or stretching frame comprising side and end members which cross each other at the corners of the frame and are provided at their points of crossing with longitudinal slots, means for clamping the side and end members together, attaching pins carried by said members, and means for maintaining the members at each corner of the frame in fixed angular relation, comprising fittings which are carried by one of the members at each corner of the frame and having arms which enter said slots of the frame members.

9. A drying or stretching frame comprising side and end members which cross each other at the corners of the frame and are provided at their points of crossing with longitudinal slots, attaching pins carried by said frame members, bolts extending through the intersecting slots to clamp the frame members together, and fittings fixed to the frame by said bolts provided with arms which have interlocking engagement with said slots.

In testimony, that I claim the foregoing as my invention I affix my signature in the presence of two witnesses, this 24th day of March HENRY GOLDBERGER.

Witnesses:

W. L. HALL, G. R. WILKINs. 

